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三角形面積公式 1/2 bc sinA的副本
Author:
粤海 邓
,
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
兩組對邊相等的四邊形
拼砌四邊形
【案例】圆柱体内放置一个大球六个小球
三位數除以一位數（二）
算柱 (兩位數)
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直角三角形斜边上的中线
cbncvbncvbcvbxcvbvc
試試看吧!
P53_3a
拋物線6 包絡線法
Discover Topics
Scatter Plot
Indefinite Integral
Arithmetic Operations
Subtraction
Interest Calculation